TPS3700_14 Datasheet, PDF (1/23 Pages) Texas Instruments – Window Comparator for Over- and Undervoltage Detection

TPS3700
www.ti.com
SBVS187C – FEBRUARY 2012 – REVISED MAY 2013
Window Comparator for Over- and Undervoltage Detection
Check for Samples: TPS3700
FEATURES
1
•2 Wide Supply Voltage Range: 1.8 V to 18 V
• Adjustable Threshold: Down to 400 mV
• Open-Drain Outputs for Over- and
Undervoltage Detection
• Low Quiescent Current: 5.5 µA (typ)
• High Threshold Accuracy:
– 1.0% Over Temperature
– 0.25% (typ)
• Internal Hysteresis: 5.5 mV (typ)
• Temperature Range: –40°C to +125°C
• Packages:
– ThinSOT23-6
– 1,5-mm × 1,5-mm SON-6
APPLICATIONS
• Industrial Control Systems
• Automotive Systems
• Embedded Computing Modules
• DSP, Microcontroller, or Microprocessor
Applications
• Notebook and Desktop Computers
• Portable- and Battery-Powered Products
• FPGA and ASIC Applications
V_MON
1.8 V to 18 V
0.1 mF
R₁
VDD
RP₁
INA+
OUTA
RP₂
R₂
Device
To a reset
or enable
input of
the system.
DESCRIPTION
The TPS3700 wide-supply voltage window
comparator operates over a 1.8-V to 18-V range. The
device has two high-accuracy comparators with an
internal 400-mV reference and two open-drain
outputs rated to 18 V for over- and undervoltage
detection. The TPS3700 can be used as a window
comparator or as two independent voltage monitors;
the monitored voltage can be set with the use of
external resistors.
OUTA is driven low when the voltage at INA+ drops
below (V_ITP – V_HYS), and goes high when the voltage
returns above the respective threshold (V_ITP). OUTB
is driven low when the voltage at INB– rises above
V_ITP, and goes high when the voltage drops below the
respective threshold (V_ITP – V_HYS). Both comparators
in the TPS3700 include built-in hysteresis for filtering
to reject brief glitches, thereby ensuring stable output
operation without false triggering.
The TPS3700 is available in a ThinSOT23-6 and a
1,5-mm × 1,5-mm SON-6 package and is specified
over the junction temperature range of –40°C to
+125°C.
INA+
V_ITP
DDC PACKAGE
ThinSOT23-6
(TOP VIEW)
OUTA 1
GND 2
INA+ 3
6 OUTB
5 VDD
4 INB-
INB
V_ITP
DSE PACKAGE
SON-6
(TOP VIEW)
OUTB 1
VDD 2
INB- 3
6 OUTA
5 GND
4 INA+
INB-
OUTB
R₃
GND
Figure 1. TPS3700 Typical Application
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2
PRODUCTION DATA information is current as of publication date.
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Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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